公开(公告)号：US06248421B1

公开(公告)日：2001-06-19

申请号：US09234985

申请日：1999-01-22

申请人： Kazuhiko Koike ,  Tomohiko Nakanishi ,  Yosiyasu Andou

发明人： Kazuhiko Koike ,  Tomohiko Nakanishi ,  Yosiyasu Andou

IPC分类号： B32B312

CPC分类号： B01D53/9454 ,  B01D53/885 ,  B01D53/94 ,  B01J35/04 ,  F01N3/2828 ,  Y02T10/22 ,  Y10T428/24149 ,  Y10T428/24165

摘要： A reinforcing layer 4 of nearly a cylindrical shape is formed along the outer circumferential portion of a ceramic honeycomb structure which comprises a cylindrical outer circumferential skin layer 1 and cell walls 2, the reinforcing layer 4 being formed at a position maintaining a one-cell pitch from the outer circumferential skin layer 1 and extending from one end surface of the ceramic honeycomb structure toward the other end surface thereof. The reinforcing layer 4 is integrally formed, of the same material, with the outer circumferential skin layer 1 and the cell walls 2 to reinforce the strength in the circumferential direction. This makes it possible to decrease the thickness of the cell walls 2 to not larger than 100 &mgr;m yet maintaining moldability and resistance to thermal shock.

摘要翻译： 沿着陶瓷蜂窝结构体的外周部形成有大致圆筒状的加强层4，该陶瓷蜂窝结构体包括圆筒形的外周表皮层1和单元壁2，加强层4形成在保持单孔间距 从外周皮层1延伸并从陶瓷蜂窝结构体的一个端面朝向另一端面延伸。 增强层4与外周表皮层1和电池壁2一体地形成为同一材料，以增强圆周方向的强度。 这使得可以将电池壁2的厚度减小到不大于100μm，同时保持成型性和耐热冲击性。

公开(公告)号：US06284188B1

公开(公告)日：2001-09-04

申请号：US09348013

申请日：1999-07-06

申请人： Yosiyasu Andou ,  Kazuhiko Koike ,  Tomohiko Nakanishi

发明人： Yosiyasu Andou ,  Kazuhiko Koike ,  Tomohiko Nakanishi

IPC分类号： C04B35195

CPC分类号： C04B38/0006 ,  C04B35/195 ,  C04B35/632 ,  C04B35/63488

摘要： There is provided a process for obtaining a cordierite honeycomb structural body with thin cell walls and no molding defects such as cell breakage or the like. Cell breakage is prevented by limiting the maximum particle size of the cordierite starting material powder to no greater than 85% of the slit width of the extrusion molding die so that the starting material particles will not clog inside the slits or the introduction port of the slits. As one cordierite starting material, talc with a mean particle size of 5 &mgr;m or greater is used to give a honeycomb structural body with a void volume of greater than 30%, for production of a honeycomb structural body, with good moldability, having a small thickness and a low heat capacity. It is preferred to add to the starting material at least a lubricant/humectant, a binder and/or a mixture of a water-soluble polyhydric alcohol derivative and a polyhydric alcohol.

摘要翻译： 提供了一种获得具有细胞壁的堇青石蜂窝结构体并且没有诸如细胞破裂等的成型缺陷的方法。 通过将堇青石原料粉末的最大粒径限制在挤出成型模具的狭缝宽度的不大于85％的方式防止细胞破裂，使得原料颗粒不会堵塞狭缝或缝隙的引入口 。 作为一种堇青石原料，使用平均粒径为5μm以上的滑石，得到空孔体积大于30％的蜂窝结构体，制造蜂窝结构体，成形性好，成型性小 厚度和低热容量。 优选至少添加润滑剂/保湿剂，粘合剂和/或水溶性多元醇衍生物和多元醇的混合物的原料。

公开(公告)号：US06589627B1

公开(公告)日：2003-07-08

申请号：US09526630

申请日：2000-03-16

申请人： Tomohiko Nakanishi ,  Masanori Yamada ,  Yosiyasu Andou

发明人： Tomohiko Nakanishi ,  Masanori Yamada ,  Yosiyasu Andou

IPC分类号： B32B312

CPC分类号： C04B35/6365 ,  C04B38/0645 ,  C04B2111/0081 ,  C08K3/34 ,  C08K7/00 ,  Y10T428/131 ,  Y10T428/1352 ,  Y10T428/24149 ,  Y10T428/24661 ,  Y10T428/24744 ,  C04B35/195 ,  C04B38/0006

摘要： There is provided a cordierite honeycomb structural body that allows the thickness of the cell walls to be reduced and heat capacity to be decreased by improving the fluidity of the molding material when passing through a mold for extrusion molding while maintaining the shape retention of the molding material. A water-soluble cellulose ether is used as a binder that is added to a cordierite-converted starting material. This water-soluble cellulose ether contains methoxyl groups substituted for the cellulose hydroxyl groups within the range of a substitution rate of 27.5 to 31.5%, does not contain hydroxypropoxyl groups and hydroxyethoxyl groups in an amount greater than the amount of unavoidable impurities (0.1 wt %), and has a viscosity in a 2 wt % aqueous solution at 20° C. of less than 8000 centipoise. As a result of adding this water-soluble cellulose ether in an amount of 3 wt % to 10 wt % relative to the amount of the cordierite-converted starting material, frictional resistance is decreased allowing improvement of fluidity while maintaining adequate hardness of the molding material.

摘要翻译： 提供了一种堇青石蜂窝结构体，通过提高成形材料在通过挤出成型用模具时的流动性，能够降低单元壁的厚度，降低热容量，同时保持成型材料的形状保持性 。 使用水溶性纤维素醚作为添加到堇青石转化的原料中的粘合剂。 该水溶性纤维素醚在取代率为27.5〜31.5％的范围内含有取代纤维素羟基的甲氧基，不含羟基丙氧基和羟基乙氧基，其量大于不可避免的杂质（0.1重量％ ），并且在20℃的2重量％水溶液中具有小于8000厘泊的粘度。 作为相对于堇青石转化原料的量添加3重量％〜10重量％的水溶性纤维素醚的结果，摩擦阻力降低，从而提高流动性，同时保持成型材料的适当的硬度 。

公开(公告)号：US06649563B2

公开(公告)日：2003-11-18

申请号：US09871904

申请日：2001-06-04

申请人： Tomohiko Nakanishi ,  Masanori Yamada ,  Yosiyasu Andou

发明人： Tomohiko Nakanishi ,  Masanori Yamada ,  Yosiyasu Andou

IPC分类号： B01J2104

CPC分类号： B01D53/9422 ,  B01D2255/202 ,  B01D2255/2022 ,  B01D2255/204 ,  B01D2255/2042 ,  B01J23/02 ,  B01J35/002 ,  B01J35/04 ,  B01J37/0238 ,  B01J37/0244 ,  Y10T428/24149

摘要： A ceramic carrier and ceramic catalyst body used as NOx purification catalysts for lean burn engines, which are inexpensive, exhibit high temperature durability and can maintain their catalytic function for extended periods. The ceramic carrier has a diffusion-inhibiting layer formed on the surface of a cordierite honeycomb structure, to inhibit diffusion of alkali metals, alkaline earth metals, etc. carried as NOx storage materials. The diffusion-inhibiting layer is composed of a ceramic material such as Y2O3, NiO or CeO2 which does not react with alkali metals or alkaline earth metals at temperatures of up to 1000° C. and has a melting point of higher than 1000° C., and the diffusion-inhibiting layer inhibits diffusion of catalyst components such as potassium into the interior to prevent their reaction with cordierite, so that the durability is greatly enhanced without reducing catalytic performance.

公开(公告)号：US06448530B1

公开(公告)日：2002-09-10

申请号：US09303681

申请日：1999-05-03

申请人： Masayoshi Fujita ,  Yosiyasu Andou ,  Toru Takeno

发明人： Masayoshi Fujita ,  Yosiyasu Andou ,  Toru Takeno

IPC分类号： B23H100

CPC分类号： B28B3/269

摘要： A method of producing a metal mold for molding a honeycomb structure, wherein the slit grooves are formed by electric discharge machining that is executed a plural number of times by using a small electrode for electric discharge machining having a working surface of an area smaller than the area of the groove-forming surface.

摘要翻译： 一种蜂窝结构体成型用金属模具的制造方法，其特征在于，所述狭缝槽通过使用放电加工用小电极进行多次的放电加工而形成，所述小电极的工作面的面积小于 槽形成面的面积。

公开(公告)号：US06641385B2

公开(公告)日：2003-11-04

申请号：US10176654

申请日：2002-06-24

申请人： Masayoshi Fujita ,  Mitsutoshi Miyazaki ,  Yosiyasu Andou

发明人： Masayoshi Fujita ,  Mitsutoshi Miyazaki ,  Yosiyasu Andou

IPC分类号： B29C4712

CPC分类号： B28B3/269

摘要： A metal mold for molding a hexagonal honeycomb structure, having feed holes for feeding a material, pool grooves formed in the shape of a triangular lattice and communicated with the feed holes, and slit grooves formed in the shape of a hexagonal lattice and communicated with the pool grooves. Each hexagonal lattice of the slit grooves is so formed as to come into agreement with a hexagon shaped by combining six triangular lattices of the pool grooves.

摘要翻译： 一种用于成型六边形蜂窝结构的金属模具，具有用于供给材料的供给孔，形成为三角形格子形状并与进给孔连通的池槽，形成为六角形格子形状的狭缝槽，并与 池槽。 狭缝槽的每个六边形格子形成为通过组合池槽的六个三角形格子而与六边形形成一致。

公开(公告)号：US06713429B1

公开(公告)日：2004-03-30

申请号：US09461415

申请日：1999-12-16

申请人： Masakazu Tanaka ,  Yosiyasu Andou ,  Keiji Ito ,  Takahiro Kida

发明人： Masakazu Tanaka ,  Yosiyasu Andou ,  Keiji Ito ,  Takahiro Kida

IPC分类号： B01J2104

CPC分类号： F01N3/2828 ,  Y02A50/2322

摘要： A purification catalyst for exhaust gas is provided that uses a hexagonal cell monolithic carrier which is able to demonstrate purification performance that is superior to the case of using a square cell monolithic carrier. This purification catalyst for exhaust gas comprises a monolithic carrier (10) provided with hexagonal cells (15) of 200 cells/in2 or more in which the porosity of partition walls (11) that form the cells (15) is 25% or more; and, a catalyst layer (2) arranged on the surface of the partition walls (11) of the monolithic carrier (10) that contains a catalyst component for purification of exhaust gas. The thickness of catalyst layer (2) is 10-70 &mgr;m at its thin portion (21), and its thick portion (22) has a thickness of no more than 12 times that of thin portion (21).

摘要翻译： 提供了一种废气净化催化剂，其使用能够表现出优于使用方形电池单片载体的情况的纯化性能的六边形单元整体载体。 这种废气净化催化剂包括一个整体式载体（10），该整体载体（10）具有200个/ in 2或更多的六边形单元（15），其中形成单元（15）的隔壁（11）的孔隙率为25％ 或者更多; 以及布置在整体式载体（10）的分隔壁（11）的表面上的催化剂层（2），其包含用于净化废气的催化剂组分。 催化剂层（2）的厚度在其薄部分（21）为10-70μm，其厚部分（22）的厚度不超过薄部分（21）的厚度的12倍。

公开(公告)号：US06309590B1

公开(公告)日：2001-10-30

申请号：US09372124

申请日：1999-08-11

申请人： Takasi Obata ,  Yosiyasu Andou ,  Kazuhiko Yasuda

发明人： Takasi Obata ,  Yosiyasu Andou ,  Kazuhiko Yasuda

IPC分类号： B28B320

CPC分类号： B28B3/269 ,  B01J35/04 ,  F01N3/2828 ,  F01N2330/34

摘要： The present invention provides a production process of a hexagonal honeycomb structure having low deformation of hexagonal cells. This process comprises an extrusion step for obtaining moldings (7) in which partitions (71) are provided in the form of a hexagonal matrix by extrusion molding of a mixed raw material using a horizontal extruder having an extrusion die provided with slits in the form of a hexagonal matrix and in which the direction of extruding is substantially the horizontal direction, a drying step for drying moldings (7), and a baking step for baking moldings (7). The extrusion step is performed such that c axis (700) parallel to two parallel sides (702) and (705) of the six sides (701) through (706) of each hexagon formed by partitions (71) of extruded moldings (7) is substantially vertical relative to the horizontal plane.

摘要翻译： 本发明提供六方晶胞形变小的六边形蜂窝结构体的制造方法。 该方法包括用于获得模制品（7）的挤出步骤，其中通过使用具有挤出模头的卧式挤出机挤出成型六边形矩形形式的隔板（71），该挤出模具具有以下形式的狭缝： 六边形基体，其中挤出方向基本上是水平方向，干燥模制品（7）的干燥步骤和用于烘烤模制品（7）的烘烤步骤。 进行挤出步骤，使得平行于由挤压成形品（7）的间隔（71）形成的每个六边形的六个边（701）至（706）的两个平行边（702）和（705）的c轴（700） 相对于水平面基本垂直。

公开(公告)号：US5952079A

公开(公告)日：1999-09-14

申请号：US051232

申请日：1998-09-04

申请人： Yosiyasu Andou ,  Yasunao Miura ,  Kazuyuki Ito

发明人： Yosiyasu Andou ,  Yasunao Miura ,  Kazuyuki Ito

IPC分类号： B28B3/20 ,  C04B38/00 ,  B32B17/00

CPC分类号： B28B3/269 ,  C04B38/0006 ,  C04B2111/00793 ,  C04B2111/0081 ,  Y10T428/24149

摘要： The present invention discloses a ceramic honeycomb structure comprising partition walls 3 that form mutually adjacent flow paths having a polygonal cross-section, and a peripheral wall 5 provided around the circumference of partition walls that hold the partition walls integrated into a single unit; wherein, the mean thickness of partition walls 3 is 0.05 mm to 0.13 mm, the mean thickness of peripheral wall 5 is greater than the mean thickness of partition walls 3, and the mean contact width between partition walls 3 and peripheral wall 5 satisfies a predetermined relationship. This ceramic honeycomb structure is able to inhibit the occurrence of chipping in the vicinity of the peripheral wall.

摘要翻译： PCT No.PCT / JP97 / 02767 Sec。 371日期：1998年9月4日 102（e）1998年9月4日PCT PCT 1997年8月7日PCT公布。 公开号WO98 / 05602 日期：1998年2月12日本发明公开了一种陶瓷蜂窝结构体，其包括形成相互相邻的具有多边形横截面的流路的分隔壁3和围绕隔壁的圆周设置的周壁5， 单一单位 其中，隔壁3的平均厚度为0.05mm〜0.13mm，周壁5的平均厚度大于隔壁3的平均厚度，隔壁3与周壁5的平均接触宽度满足预定的 关系。 该陶瓷蜂窝结构体能够抑制周壁附近的碎屑的发生。